Theorem 3.2 ([1]}, [2]}))
Let \(X\)  be a complex projective manifold and let \(E\)  be a rank \(r\)  nef (resp., ample) vector bundle on \(X\) . For any \(r\) -dimensional conic subvariety \(C\)  of \(E\) , one has
\(C \cdot Z_E \ge 0 \ \ \ ({\rm resp.}, \ >0),\) 
